package com.wlq.gulimall.product.service.impl;

import com.alibaba.fastjson.TypeReference;
import com.wlq.common.constant.ProductConstant;
import com.wlq.common.to.SkuReductionTo;
import com.wlq.common.to.SkusHasStockVo;
import com.wlq.common.to.SpuBoundTo;
import com.wlq.common.to.es.SkuEsModel;
import com.wlq.common.utils.R;
import com.wlq.gulimall.product.entity.*;
import com.wlq.gulimall.product.feign.CouponFeignService;
import com.wlq.gulimall.product.feign.SearchFeignService;
import com.wlq.gulimall.product.feign.WareFeignService;
import com.wlq.gulimall.product.service.*;
import com.wlq.gulimall.product.vo.*;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.math.BigDecimal;
import java.util.*;
import java.util.stream.Collectors;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.wlq.common.utils.PageUtils;
import com.wlq.common.utils.Query;

import com.wlq.gulimall.product.dao.SpuInfoDao;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.util.StringUtils;


@Service("spuInfoService")
public class SpuInfoServiceImpl extends ServiceImpl<SpuInfoDao, SpuInfoEntity> implements SpuInfoService {

    @Autowired
    SpuInfoDescService spuInfoDescService;

    @Autowired
    SpuImagesService imagesService;

    @Autowired
    AttrService attrService;

    @Autowired
    ProductAttrValueService attrValueService;

    @Autowired
    SkuInfoService skuInfoService;

    @Autowired
    SkuImagesService skuImagesService;

    @Autowired
    SkuSaleAttrValueService skuSaleAttrValueService;

    @Autowired
    CouponFeignService couponFeignService;

    @Autowired
    BrandService brandService;

    @Autowired
    CategoryService categoryService;

    @Autowired
    WareFeignService wareFeignService;

    @Autowired
    SearchFeignService searchFeignService;

    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<SpuInfoEntity> page = this.page(
                new Query<SpuInfoEntity>().getPage(params),
                new QueryWrapper<SpuInfoEntity>()
        );

        return new PageUtils(page);
    }

    /**
     * //高级部分接着完善
     * @param vo
     */
    @Transactional
    @Override
    public void saveSpuInfo(SpuSaveVo vo) {

        //1、保存spu的基本信息  pms_spu_info
        SpuInfoEntity infoEntity = new SpuInfoEntity();
        BeanUtils.copyProperties(vo,infoEntity);
        // 1、设置infoEntity里独有的字段
        infoEntity.setCreateTime(new Date());
        infoEntity.setUpdateTime(new Date());
        this.saveBaseSpuInfo(infoEntity);

        //2、保存spu的描述图片  pms_spu_info_desc   //表里面只有两个属性spu_id、decript
        List<String> decript = vo.getDecript();
        SpuInfoDescEntity descEntity = new SpuInfoDescEntity();
        //根据第一步获取的基本信息里面获取到spuid
        descEntity.setSpuId(infoEntity.getId());
        descEntity.setDecript(String.join(",",decript));
        spuInfoDescService.saveSpuInfoDesc(descEntity);

        //3、保存spu的图片集   pms_spu_images
        List<String> images = vo.getImages();
        imagesService.saveImages(infoEntity.getId(),images);


        //4、保存spu的规格参数  pms_product_attr_value
        List<BaseAttrs> baseAttrs = vo.getBaseAttrs();
        List<ProductAttrValueEntity> collect = baseAttrs.stream().map(attr -> {
            ProductAttrValueEntity valueEntity = new ProductAttrValueEntity();
            valueEntity.setAttrId(attr.getAttrId());
            AttrEntity id = attrService.getById(attr.getAttrId());
            //获取页面提交的值
            valueEntity.setAttrName(id.getAttrName());
            valueEntity.setAttrValue(attr.getAttrValues());
            valueEntity.setQuickShow(attr.getShowDesc());
            valueEntity.setSpuId(infoEntity.getId());

            return valueEntity;
        }).collect(Collectors.toList());

        attrValueService.saveProductAttr(collect);


        //5、保存spu的积分信息  gulimall_sms -> sms_spu_bounds
        Bounds bounds = vo.getBounds();
        SpuBoundTo spuBoundTo = new SpuBoundTo();
        BeanUtils.copyProperties(bounds,spuBoundTo);
        spuBoundTo.setSpuId(infoEntity.getId());
        R r = couponFeignService.saveSpuBounds(spuBoundTo);
        if(r.getCode() != 0){
            log.error("远程保存spu积分信息失败");
        }


        //5、保存当前spu对应的所有sku信息

        List<Skus> skus = vo.getSkus();
        if (skus!=null && skus.size()>0){
            skus.forEach(item -> {
                String defaultImg = "";
                for (Images image : item.getImages()){
                    if (image.getDefaultImg() == 1){
                        defaultImg = image.getImgUrl();
                    }
                }
//                private String skuName;
//                private BigDecimal price;
//                private String skuTitle;
//                private String skuSubtitle;

                //5.1）、sku的基本信息         pms_sku_info
                SkuInfoEntity skuInfoEntity = new SkuInfoEntity();
                BeanUtils.copyProperties(item,skuInfoEntity);
                skuInfoEntity.setBrandId(infoEntity.getBrandId());
                skuInfoEntity.setCatalogId(infoEntity.getCatalogId());
                skuInfoEntity.setSaleCount(0L);
                skuInfoEntity.setSpuId(infoEntity.getId());
                skuInfoEntity.setSkuDefaultImg(defaultImg);
                //保存sku基本信息
                skuInfoService.saveSkuInfo(skuInfoEntity);


                Long skuId = skuInfoEntity.getSkuId();

                //5.2）、sku的图片信息         pms_sku_images
                List<SkuImagesEntity> imagesEntities = item.getImages().stream().map(img -> {
                    SkuImagesEntity skuImagesEntity = new SkuImagesEntity();
                    skuImagesEntity.setSkuId(skuId);
                    skuImagesEntity.setImgUrl(img.getImgUrl());
                    skuImagesEntity.setDefaultImg(img.getDefaultImg());

                    return skuImagesEntity;
                }).filter(entity ->{
                    //返回true就是需要，false不要
                    return !StringUtils.isEmpty(entity.getImgUrl());
                }).collect(Collectors.toList());
                //保存sku图片信息
                skuImagesService.saveBatch(imagesEntities);
                //TODO 没有图片，路径无需保存


                //5.3）、sku的销售属性信息      pms_sku_sale_attr_value
                List<Attr> attr = item.getAttr();
                List<SkuSaleAttrValueEntity> skuSaleAttrValueEntities = attr.stream().map(a -> {
                    SkuSaleAttrValueEntity attrValueEntity = new SkuSaleAttrValueEntity();
                    BeanUtils.copyProperties(a, attrValueEntity);
                    attrValueEntity.setSkuId(skuId);

                    return attrValueEntity;
                }).collect(Collectors.toList());
                //保存sku的销售属性信息
                skuSaleAttrValueService.saveBatch(skuSaleAttrValueEntities);


                //5.4）、sku的优惠、满减等信息   gulimall_sms -> sms_sku_ladder、sms_sku_full_reduction、sms_member_price
                //需要操作远程服务，也就是跨库跨服务
                SkuReductionTo skuReductionTo = new SkuReductionTo();
                BeanUtils.copyProperties(item,skuReductionTo);
                skuReductionTo.setSkuId(skuId);
                if(skuReductionTo.getFullCount() >0 || skuReductionTo.getFullPrice().compareTo(new BigDecimal("0")) == 1){
                    R r1 = couponFeignService.saveSkuReduction(skuReductionTo);
                    if(r1.getCode() != 0){
                        log.error("远程保存sku优惠信息失败");
                    }
                }
            });
        }





    }

    @Override
    public void saveBaseSpuInfo(SpuInfoEntity infoEntity) {
        this.baseMapper.insert(infoEntity);
    }

    @Override
    public PageUtils queryPageByCondition(Map<String, Object> params) {

        QueryWrapper<SpuInfoEntity> wrapper = new QueryWrapper<>();

        String key = (String) params.get("key");
        if(!StringUtils.isEmpty(key)){
            wrapper.and((w)->{
                w.eq("id",key).or().like("spu_name",key);
            });
        }
        // status=1 and (id=1 or spu_name like xxx)
        String status = (String) params.get("status");
        if(!StringUtils.isEmpty(status)){
            wrapper.eq("publish_status",status);
        }

        String brandId = (String) params.get("brandId");
        if(!StringUtils.isEmpty(brandId)&&!"0".equalsIgnoreCase(brandId)){
            wrapper.eq("brand_id",brandId);
        }

        String catelogId = (String) params.get("catelogId");
        if(!StringUtils.isEmpty(catelogId)&&!"0".equalsIgnoreCase(catelogId)){
            wrapper.eq("catalog_id",catelogId);
        }

        /**
         * status: 2
         * key:
         * brandId: 9
         * catelogId: 225
         */

        IPage<SpuInfoEntity> page = this.page(
                new Query<SpuInfoEntity>().getPage(params),
                wrapper
        );

        return new PageUtils(page);
    }

    @Override
    public void up(Long spuId) {

        //1、查出当前spuid对应的所有sku信息、品牌名字
        List<SkuInfoEntity> skus = skuInfoService.getSkusBySpuId(spuId);
        List<Long> skuIdList = skus.stream().map(SkuInfoEntity::getSkuId).collect(Collectors.toList());

        //todo 4、查询当前sku的所有可以被用来检索的规格属性
        List<ProductAttrValueEntity> baseAttrs = attrValueService.baseAttrlistforspu(spuId);
        List<Long> attrIds = baseAttrs.stream().map(attr -> {
            return attr.getAttrId();
        }).collect(Collectors.toList());

        List<Long> searchAttrIds = attrService.selectSearchAttrs(attrIds);

        HashSet<Long> idSet = new HashSet<>(searchAttrIds);

        List<SkuEsModel.Attr> attrsList = baseAttrs.stream().filter(item -> {
            return idSet.contains(item.getAttrId());
        }).map(item -> {
            SkuEsModel.Attr attr = new SkuEsModel.Attr();
            BeanUtils.copyProperties(item, attr);
            return attr;
        }).collect(Collectors.toList());

        //todo 1、发送远程调用，查询系统是否有库存
        Map<Long, Boolean> stockMap = null;
        try {
            R r = wareFeignService.getSkusHasStock(skuIdList);
//        List<SkusHasStockVo> data = skusHasStock.getData();
            TypeReference<List<SkusHasStockVo>> typeReference = new TypeReference<List<SkusHasStockVo>>() {
            };
            r.getData(typeReference).stream().collect(Collectors.toMap(SkusHasStockVo::getSkuId, item -> item.getHasStock()));
        }catch (Exception e){
             log.error("库存服务查询异常：原因{}",e);
        }


        //2、封装sku的信息
        Map<Long, Boolean> finalStockMap = stockMap;
        List<SkuEsModel> upProducts = skus.stream().map(sku -> {
            //组装需要的数据
            SkuEsModel esModel = new SkuEsModel();
            BeanUtils.copyProperties(sku, esModel);

            esModel.setSkuPrice(sku.getPrice());
            esModel.setSkuImg(sku.getSkuDefaultImg());

            //设置库存信息
            if (finalStockMap == null){
                esModel.setHasStock(true);
            }else {
                esModel.setHasStock(finalStockMap.get(sku.getSkuId()));
            }

            //todo 2、热毒评分
            esModel.setHotScore(0L);

            //todo 3、查询品牌分类和信息
            BrandEntity brand = brandService.getById(esModel.getBrandId());
            esModel.setBrandName(brand.getName());
            esModel.setBrandImg(brand.getLogo());

            CategoryEntity category = categoryService.getById(esModel.getCatalogId());
            esModel.setCatalogName(category.getName());

            //设置检索属性
            esModel.setAttrs(attrsList);

            return esModel;
        }).collect(Collectors.toList());

        //todo 5、发送数据给es进行保存  gulimall-search
        R r = searchFeignService.productStatusUp(upProducts);
        if (r.getCode() == 0){
            //调用成功
            //todo 6、修改当前spu状态
             baseMapper.updateSpuStatus(spuId, ProductConstant.StatusEnum.SPU_UP.getCode());
        }else {
            //远程调用失败
            //todo 7、重复调用？接口幂等性；重试机制
        }
    }


}
